A335P9 steel pipe is an alloy steel pipe suitable for working in high temperature environment. A335P9 contains a lot of chemical elements like nickel, tungsten, molybdenum, chromium, silicon, manganese, vanadium and small quantities of a few commonly used elements such as sulphur , Silicon and phosphorous. These elements enhance the strength and chemical resistance of A335P9.
A335P9 Mechanical Tests Specified:
Transverse or Longitudinal Tension Test and Flattening Test, Hardness Test, or Bend Test
For material heat treated in a batch-type furnace, tests shall be made on 5% of the pipe from each treated lot. For small lots, at least one pipe shall be tested.
For material heat treated by the continuous process, tests shall be made on a sufficient number of pipe to constitute 5% of the lot, but in no case less than 2 pipe.
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